Speed variable drive for overrunning clutch, has crank-pin mounted on circumference of input shaft and driven by crank-rod of clutches that alternately receive drive and free movements to execute partial rotation

摘要

The drive has an input shaft (1) with a crank-pin (2) driven by an intermediate crank-rod (3) of overrunning clutches (4) and mounted on a circumference of the shaft. Each clutch alternately receives drive and free movements to execute a partial rotation. The clutch drives a sprocket (5) and an idle wheel (6) cumulates the partial rotations. A sprocket (7) mounted on an output shaft recovers the cumulative rotations.